/*
 * Copyright (c) 2002-2012 Alibaba Group Holding Limited.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.citrus.async.support;

import com.alibaba.citrus.service.pipeline.PipelineContext;
import com.alibaba.citrus.turbine.pipeline.valve.AbstractInputOutputValve;

public class SetScreenResult extends AbstractInputOutputValve {
    private static final ThreadLocal<Object> resultHolder = new ThreadLocal<Object>();

    public static void clear() {
        resultHolder.remove();
    }

    public static void set(Object result) {
        resultHolder.set(result);
    }

    public void invoke(PipelineContext pipelineContext) throws Exception {
        setOutputValue(pipelineContext, resultHolder.get());
        pipelineContext.invokeNext();
    }
}
